Grading-machine.



W. SYKES.

GRADING MACHINE. APPLICATION FILED JULY 15, 1910 Patented 0011121911.

7 SHEETSSHEBT 1.

IIVI/ENTOR ATTOR/VEV I WITNESSES:

SYKES. GRADING MACHINE.

APPLICATION FILED JULY 15, 1910.

Patented Oct. 1 7, 1911.

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WITNESSES: I

. ITO/WEN W. SYKES.

GRADING MACHINE.

' APPLIOATION FILED JULY 15, 191p. wamg Emma 0011. 17,1911.

7 SHEETSSHEET,3.

)@ ATTORNEY! W. SYKES.

GRADING MACHINE.

APPLIOATION FILED JULY 15, 1910.

mm wm Patented Oct. 17, 1911.

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IN W5 A! TOR WITNESSES:

w. n w .WA 8 J m mm W M W. SYKES. v GRADING MAGHINE. APPLIOATIUN TILED J ULY15, 1910.

Patented 0011. 17, 1911.

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Patented Oct. 17,1911.

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I Patented 0111. 17,1911.

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llhllTED @Fhli v 'WlLLIAI/i O35 JACKSDN, MISSISHPPI.

GRADING-MACHINE Specification of Letters Patent. dipplication filed July 15, 1910. Serial No. 572,220.

.nted Greta 3?, i911.

and distributing the earth and their sup porting and adjusting means. Inasmuch as like scrapers and means are thus carried on each side of the vehicle, I shall, for brevity and clearness, describe those carried on one side as shown in Fig. 1, wishing it under stood that a like arrangement is provided on the other side of the vehicle.

The earth is loosened and distributed by a scraper 3, having a main or forward meniher 4, to which is pivoted at 5, to turn vertically, an auxiliary or rearward member 6. The :t'orward end of the scraper is supported at desired heig' t, and is adjusted laterally to a desired pos ion by a transversely ex tending arm 7 pivoted at 8 to said main member near its lower-edge, as shown: a spring 9 pressing the scraper on said pivot to the position shown in the drawings, is adapted to yield should the lower edge of the scraper strike an unusual obstruction, thus allowing the scraper to turn on such pivot to prevent its .inj y.

The transverse arm is supported, and may be raised or lowered to adjust the scraper vertically, by cable 10 having a slider connection 11. slidable longitudinally on the arm, and attached at its upper end to the outer arm 12 of a bent lever (shown particularly in Fig. 11) fulcrumed on the vehicle body. The cable 13 attached to said arm 12, is wound an a drum l l carried by the shaft 15 whose worm gear 16 is turned by its engaging worm l? on the shaft of the hand-wheel l8, particularly shown in Fig 9. It will be seen that when the scraper is lowered sutliciently by turning this hand wheel, the forked end 19 of the inner arm 20 of the bent lever will engage the cable 13,

thus providing a more ctlective supporting To all whom it may concern:

Be it known that I, VILLIAM SYKns, a citizen of the United States, and resident of the city of Jackson, in the county of Hinds and State of Mississippi, have invented new and useful Improvements; in Grading-M21 chines, of which the following is a specification.

My invention relatesto grading machines, and its principal object isto provide an improved machine of that character in which the scrapers for'l'oosening and distributing the earth shall be operated through direct traction connections with the motive'power, being nevertheless adjustable to a desired operative position. This, and other objects appearing hereinafter, are attained by, and my invention is referably embodied in, the following described mechanism, illustrated by the accompanying drawings, in which Figure l is a side elevation of my grading machine, showing the parts on the righthand half of the machine only, the like. parts on the left-hand half being omitted I for the sake'of clearness; Fig: 2 is a plan View of my grading machine; Fig. 3 is a like view of its forward alxle with connected parts, illustrating the traction connections; Fig. 4 is an enlarged right side elevation, partly in vertical section, of the rearward portion ofv my -'machine; Fi 5 is an enlarged detail view of. the htce worm by which the rear end of the main scraper member is raised and lowered; Fig. 6 is an enlarged detail front view of the" outer portion of the rightfhand' scrapefis forwardsupporting and laterally-adjusting arm with connected parts, the main scraper member appearing in vertical section; Fig.7 is a detail enlarged View, partly in vertical section, of the gearing and connections, line for the cables 10 and 13 than where a whereby the scrapers are ad usted laterally; single arm lever 13 used. The transverse arm 7 may be thrust longitudinally to adjust and retain the scraper in a desired lateral position, by the gear 21 meshing with a rack 22 carried by the arm 7. The bearing-block 23 of this gears shaft 24- is vertically swiveled at 25 on the vericle body. A guide 26, in form a stirrup, en'ibracing the arm '7 and having antifriction rolls 2?, is pivoted on the shaft 24, and serves to retain the arms rack in engagement with its gear. A suit able universal joint 28 of common form couples the gears shaft 24 with that of the hand-wheel 29, whereby the scraper may be Fig. 8 is a vertical section of the same on. a line corresponding with line SS of Fig. 7 Fig-J9 is an enlarged detail view of the gearing whereby the forward end of the scraper is raised and lowered; Fig. .10 is an enlarged detail view of the pivotal connection between the scraper and'the curved arni of its traction connections, and Fig. 11 is r front view of the devices whereby the supporting .and laterally-adjusting arm is raised and lowered.

A suitable vehicle bodyl, traveling on wheels 2, carries the scrapers for loosening laterally adjusted. The main scraper memher 4 has a rearwardly-extending beam 30,

having the braced construction shown, whose 'ried by a sha; 36 which has a crank 37, by

turning which the rearward end of the main scraper member may be adjusted and retained in a desired vertical position. a

To the lower end of the rackbeam 32 is pivoted a brace having forwardly-diverging arms 38 pivoted at 39 on the vehicle body, thus affording lateral bracing for the rack beam. The shaft 36 rotates in a hollow shaft 57, provided with a hand-wheel 56, which hollow shaft rotates in bearings on the vehicle body and carries a drum 58 on which is wound a cable 59 attached at to the auxiliary scraper member 6, and thus supports its free end at a desired height.

The entire machine is drawn forward to effect the grading by traction connections operating'on the scrapers directly, and not through the medium of the vehicle body. Such connections are in the construction shown as follows: A curved arm 40 passing over the scraper is pivoted in the manner particularly shown in Fig. 10 on a horizontal rod 41 carried on the rear side'of the main scraper member, as near its lower edge and asnear the connection of the supporting arm 7 with such scraper member as conveniently may be. The curved arm being slidable on the rod 41, may be adjusted to a desired position longitudinally thereof, as by screw-set collars 42. A traction cable 43 connects the curved arm with the double tree- 44 for the rear span of horses, where animal motive power is used, and continuing forward is attached to the double tree 45 for a fore span. The same arrangement is, of

course, made on each side of the vehicle, as

- opposite side of the vehicle. It will be seen that the trees are thus tractionally connected daeegtlv with the scrapers and that the vehicie )dy is drawn or pushed forward by the braces 38. To relieve strains, the upper and lower members 49 and 50, of the fifth wheel are yieldingly held together by a helical spring 51 encircling the king pin 52, and pressing between the upper member 49 and the king pins nut 53. Suitable pedal friction-brakes 54 and 55 engage the handwheels 29 and 56 respectively.

Not confining myself to the details of construction shown and described, I claim:

1. In a grading machine, a vehicle body, a scraper connected to the body and at its forward end adjustable laterally in relation to the body, and traction connectionsdirectly with the forward adjustable end of the scraper.

2. In a grading machine, a vehicle body, a scraper adapted to move the excavated earth inwardly and toward the vehicle body, means intermediate the body and scraper to adjustably hold the scraper relatively to the body, and traction connections directly with the scraper.

3. In a grading machine, a vehicle body, a scraper oii-each side thereof having connected toward its fore end a supporting arm, means intermediate the body and arm to adjustably hold it laterally in relation to the body, means intermediate the body and pivoted together to turn vertically and having connected to the fore member a supporting arm, means intermediate the body and arm to adjustably hold it in lateral relation to the body, means intermediate the body and arm for raising and lowering the outer end of the arm, means intermediate the body and the rear end of the fore member for raising and lowering the same, and means intermediate the body and the rear end of the rear member for raising and lowering the same.

5. In a grading machine having a vehicle body and a scraper, a supporting and laterally-adjusting arm connected to the scraper and longitudinally movable on the bodyand having a rack, a gear meshing with the rack to so move the arm, a slider slidable longitudinally the arm, and connections intermediate the body and the slider for raising and lowering the arm and scraper.

6. In a grading machine having a vehicle body and a scraper, a-supporting and laterally-adjusting arm connected to the scraper and longitudinally movable on the body and having a rack, a gear meshing with the rack to so move thearm, a slider slidable longitudinally the farm, a bent lever fulcrumed on the body, a cable attached to the slider and one of the arms oft-he lever, and, for raising the scraper, a cable attached .tosaid lever arm andadapted to engage the other arm of thelever in the lowered position of the scraper and to disengage it in the position, for the purpose ried by the body and pivoted onthe scraper,

and a spring adapted to press the scraper on said pivot to its operative position.

8. In a grading machine having a-body and a scraper, a supporting and laterallyadjusting arm connected to the scraper and having a rack, a bearing-block swiveled on the body and having a gear meshing with the arms rack and-a stirrup guide slidably holding the arm and pivoted concentrically the gears shaft.

9. In a grading machine having a body and a scraper comprising. fore and rear members pivoted together to turn vertically, supports for the rear end of said members, comprising a. vertically movable rack pivoted to the rear of one member and 'a cable att ched to the rear of the other member, a ho low shaft journaled on the vehicle body and having a drum on which the cable is wound, and a shaft rotatable in the hollow shaft and carrying a face worm meshing with the racks teeth.

10. In a grading machine, a vehicle body, a scraper connected to the body and at its forward end adjustable vertically and laterally in relation to the body, and traction connections directly with the forward adjustable end of the scraper.

11. In a grading machine, a vehicle hav; ing a tongue and on each side a scraper, a

traction cable fastened to each to rear Whifflctree and continuing forward.

"fastened to a fore \vhiiiietree, a-spreader for the rear WhlfllGbl'QG connected at one end therewith and at 1ts other end pivoted to the opposite side of the vehicle, and a S C/rape]? true;

spreader for the fore whifiletrees connected therewith and having a sliding longitudinally the tongue.

12. In a grading machine, a vehicle body,

scrapers, one on each side of the body and adapted to move the excavated earth inwardly and toward the vehicle body, means intermediate the body and the scrapers to adjustably hold them in relation to the body, and traction connections directly with the scrapers,

13. In a grading machine, a vehicle body, scrapers, one on each side of the body and adapted to move the excavated earth in- Wardly and toward the vehicle body, means intermediate the body and the scrapers to adjustably hold them vertically and. laterally in relation to the body, and traction connections directly Withthe scrapers.

14:. in a grading machine, a vehicle body, scrapers, one on each side of the body, means intermediate the body and each scraper to adjustably hold it relatively to the body and the other scraper, and traction connections directly with the scrapers.

'WILUZAl-a Witnesses: H

EDW. E, HINDMAN, E. O. Kai-loss.

Gopies oi this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

engagement 

